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    Surface Finish Calculator: Achieve Optimal Turning Results | WIDIA

    Calculating Surface Finish, Inches Per Revolution, and Corner Radius

    These calculations are based upon theoretical values and are only intended for planning purposes. Actual results will vary. No responsibility from Kennametal is assumed.

    Surface finish
    Metric
    Inch

    Surface finish

    inmm
    iprmm/rev
    Surface Finish Results

    Surface Finish Results

    µm
    Inches per revolution

    Inches per revolution

    µm
    in mm
    Inches Per Revolution Results

    Inches Per Revolution Results

    ipr mm/rev
    Corner Radius

    Corner Radius

    µm
    ipr mm/rev
    Corner Radius Results

    Corner Radius Results

    in mm
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    . Please enter the desired qty for the material(s) you want to include in your promotion or Proceed Without Promotion and only your base materials will be added to the cart.

    Minimum quantity should be

    SAP Material Number ISO Catalog Number Grade  

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    Hardness

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        Hardness Scale

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          Permitted Groups :

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          Hardness (HB)

          Hardness (HRC)

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